Windmill



yJuly 13,1926. y 1,592,417

` W. BURKE WINDMILL' Filed June 23 1925 2 Sheets-Sheet l M11/AM' M 50i/111s July 13., 192e,

w. w. BURKE WINDMILL 2 Sheets-Sheet 2 Filed June 25. 1925 ,l Ev 35, Mw

Patented July 13,` 1926.

tesa-iii l WILLIAM wQBURKEQo'r LINDEN, rEXAsJ i WINIJMILL.

Application led'i'une 23,1925'. Serial No. 39,110.9.;V j 'v This invention appertains to wind wheels androne of the primary objects of theV invention is to provide a novel wind-wheel and andnovel means for directing the full force of the windirrespective ofthe directionin which the same is blowing, against the panels or blades of the wheel. v r

Another object of the invention is to provide a wind mill embodying a novel wind" wheel rotatably mounted withinl a suitable frame, the frame including tangentially eX- tendingA pairs of upper and lower arms, the

pairs of. arms supporting novel arcuate wings for directing the wind' against the blades of the wheel. s A further object of the invention is tapered in diameter toward its lower .end and vincluding a plurality of spaced arcuate blades twisted spirally'around the hub thereof, the blades being braced in a novelfmaiinerl to prevent the` distortion thereof. A

' further object of the inventionis to provide an improvedwind wheel which willy be durable and eiicient in use, one that will be simple and easy to manufacture, and one vwhich can'be placed `upon the market ata small cost and used fora number of difi'erent'puroses.` f With these and other objects in view, the

invention consists inv the novelconstructiom.

arrangement and formation of parts, as will be hereinafter more specifically described, claimed and illustrated in the accompanying drawings; in .which drawings:

Figure 1 is a plan view of the improvedV windmill, y

Figure 2 is al vertical section through the same taken on the line 2-2'of Figure` l looking in the direction of the arrows,

Figure 3 is a detail section taken on the line 3--3 of Figure 4 showing the construction ofthe hub of the wind wheel and the means for mounting the wind wheel in position on its supporting frame,

Figure 4 is a horizontal section through the windmill, f

Figure 5 is a detail erspective view of the novel means employe for bracing the frame and supporting the guide wings,

Figure 6 is a perspective viewy of one of the bracing strips for the wings,

Figure 7 is a perspective view of one of the guide wings,

Figure ,8 is a fra entary detail horizontal section throng the wind wheelk ilthe provision of a novel win'd wheelgraduallyl lustratingthe means of connecting thelblades withthe hub ofthe wheel andthe means for bracing the blades. L Y

Referring to the drawingsiii detail, where- 50 in similar reference ycharacters designate corresponding parts throughout the several views; the letter A generally indicates the improved windmill, which comprises a frame` l0,V in which is rotatably mounted the wind wheel 20.y The frame l() embodies upright corner supporting standards 11, which are bolted or otherwise secured to radially eX- tendiiig arms 12. These arms12 cross each Vother at right anglesjand can be connected together inany preferred way. p

The windwheel 2O embodies a hollow hub 2l` to f which is y secured vthe .equi-distantly y .spaced arcuate blades 22. g The inner edges of the blades areprovided with attaching flanges 23 which permit the blades to be readily rivetedfor otherwisesecuredto the hub. The blades gradually decrease in width towardtheir lower'ends, which forms a substantially frusto-'conical shaped wlieelao andthe blades arev twisted spirally about the' hub. The frusto-conical shape of the wind wheel tends to catch the wind in such a'manner asto cause a lifting action there- Y on,k thusrelievingfriction to a great extent 8" on the lower bearing. I

In order to brace the blades the opposite ends .thereof are vprovided with attaching klugs24which are riveted-or otherwise secured yto upper andy lower annular retaining rings 25. If desired the blades 22 can be braced atv a point intermediate their .ends i by suitable bracing strips 26 which can be` riveted or otherwise securedito "the blades adjacent to the outer edges'thereof. The

hollow hub 2l can be secured to a hollow :shaft 27 the terminals of which canbe eX- tended beyond the hub.k kThe ext-ended terminals of the shaft are adapted to be mountf ed-infsuitable bearings 28 and 29 carried` by the frame 10 at the point of crossing of the arms l2.L "These bearings can be in the nature of ball or roller bearings, if desired, and the bearing29 can be of the thrust type. A spindle 30 can be secured to the hollow shaft 27 and issextended below the frame 10 and any desired device can be fixed to said spindle to permit power to be taken oif of the same. f K

In order to direct-the wind to the wind wheel irrespective of the direction in which thev vwind isrblowiiig, novel arcuate wings are provided. These wings 35 can be constructed from sheetl metal and are held in place by upper and lower frames 36. These frames 36 include arms 37 which eX- tend substantially tangentially to the periphery of the wind wheel. The upper and lower ends of the wings 35 at the outer ends thereof are provided with right angularly extending attaching ears 38 whichare secured to the outer Vends of the arms 3T. The wings 35, as stated are arcuate. shaped in horizontal section and extend inwardly toward the wind wheels and have their inner edges preferably secured to the uprights or standards 1l. T he inner edges of the wings 35 are cut diagonally as at 39 so as to conform to the configuration of the wind wheel.

In orderA to effectively brace the wings and the frame l0, upright bracing strips are provided. These bracing strips 4() are secured respectively to the uprights l1 and the inner faces of the wings 35 and the opposite ends of the bracing strips '40 are extended as at 4l for engaging the upper and lower ends oit' the wings at the inner edge thereof. If necessary the upper enlarged ends Ll of the bracing strips 40 can be notched as at 42 :tor the upper bracing rings 25 ot' the wind wheel. f Y

F rom the foregoing description, it can be seen that l have provided an exceptionally simple device, which will effectively accomplish the purpose intended.

Changes in details, may be made without departing` from the spirit or the scope ol this invention, but:

1vVhat I claim as newis l. In a windmill, a frame, a wind wheel revoluble in the frameon vertical axis, supporting arms extending from the frame substantially at a tangent to the periphery of the wind wheel, and arcuate wings carried by he arms for directing the wind toward the wheel.

2. ln a windmill, a frame, a wind wheel revoluble on a vertical axis mounted within Ythe frame including a hub, equidistantly spaced arcuate blades carried by the hub and extending spirallyf around the same, the blades gradually decreasing` in width toward one end thereof, upper and lower bracing rings secured respectively to the terminals oi the blades, and braces connected to the intermediate Vportions oi the blades.

3. ln a windmill, a supporting frame, a wind wheel disposed vertically within the frame including a hub, equidistantly spaced 'arcuate blades secured to the hub, the blades gradually decreasing' in width toward one end of the wheel and arranged spil-ally about the hub, upper and lower arms carried by the frame and extending substantially at a tangent to the periphery of the wheel, and arcuate wings carried by and between said arms arranged at quarters on the frame for directing the wind toward the wind wheel.

t. In a windmill, a frame, a wind wheel revoluble on a vert-ical axis mounted in the frame including a hollow hub, equi-distantly spaced arcuate blades carried by the hub and extending spirally around the same, the blades gradually decreasing iny width toward one end thereof, upper and lower bracing rings secured respectively to the terminals or the blades, braces connected to the intermediate portion of the blades, and polygonal shaped brackets secured to the upper and lower ends of the frame including outwardly extending `arms arranged substantially in a tangent to the peripheryof the wind wheel, and guide wings connected to tlieiarms and the frame, the inner edges of the wings being-cut at an angle to conform to the configuration ot" the wind wheel, and means for bracing said wings.

In testimony whereof I aflix my signature.

WILLIAM lV. BURKE, 

